A "direct" scheme to compute Fock matrices in the timedependent Hartree-Fock-Roothaan method is presented. Applicability of the method to compute frequency-dependent (hyper)polarizabilities of large organic molecules on low-end workstations is illustrated by considering three model systems, hexapent
The time-dependent coupled cluster approach to molecular photodissociation dynamics
β Scribed by G. Madhavi Sastry; M. Durga Prasad
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 443 KB
- Volume
- 228
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The time-dependent coupled cluster method (TDCCM ) has been applied to the photodissociation dynamics of linear triatomits using the Beswick-Jortner model. The autocorrelation function and absorption spectra have been evaluated and the convergence of the method has been tested by evaluating the autocorrelation function at different truncations of the S-matrix elements. It is found that the TDCCM approach converges to exact results quite quickly.
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A novel model that combines genetic algorithm (GA) and proportional + integral + derivative (PID) control for adaptive marginal buffer management is proposed here. The goal is to prevent buffer overflow at the receiver side so that message retransmissions that lead to poor system reliability and per